1 files changed, 158 insertions, 0 deletions
diff --git a/support/libc/libc.c b/support/libc/libc.c
new file mode 100644
index 00000000..9b5cfe73
--- /dev/null
+++ b/support/libc/libc.c
@@ -0,0 +1,158 @@
+#include "locale.h"
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+int errno;
+
+#define MAXENV 32
+static char *envnames[MAXENV];
+static char *envvars[MAXENV];
+
+static void cleanup_libc(void) __attribute__((destructor));
+static void cleanup_libc(void)
+{
+	int i;
+	for (i=0; i <MAXENV; i++) {
+		if (envnames[i])
+			free(envnames[i]);
+		if (envvars[i])
+			free(envvars[i]);
+	}
+}
+
+char *
+getenv(const char *name)
+{
+	int i;
+	for (i=0; i < MAXENV; i++) {
+		if (envnames[i] && !strcmp(envnames[i], name))
+			return envvars[i];
+	}
+	return NULL;
+}
+
+int
+setenv(const char *name, const char *value, int overwrite)
+{
+	int i;
+	char *val;
+	for (i=0; i < MAXENV; i++) {
+		if (envnames[i] && !strcmp(envnames[i], name)) {
+			if (overwrite) {
+				val = strdup(value);
+				if (!val)
+					return -1;
+				if (envvars[i])
+					free(envvars[i]);
+				envvars[i] = val;
+			}
+			return 0;
+		}
+	}
+	for (i=0; i < MAXENV; i++) {
+		if (!envnames[i]) {
+			envnames[i] = strdup(name);
+			envvars[i] = strdup(value);
+			if (!envnames[i] || !envvars[i]) {
+				if (envnames[i])
+					free(envnames[i]);
+				if (envvars[i])
+					free(envvars[i]);
+				envnames[i] = NULL;
+				envvars[i] = NULL;
+				return -1;
+			}
+			return 0;
+		}
+	}
+	return -1;
+}
+
+int unsetenv(const char *name)
+{
+	int i;
+	for (i=0; i < MAXENV; i++) {
+		if (envnames[i] && !strcmp(envnames[i], name)) {
+			free(envnames[i]);
+			envnames[i] = NULL;
+			if (envvars[i])
+				free(envvars[i]);
+			envvars[i] = NULL;
+		}
+	}
+	return 0;
+}
+
+char *
+getcwd(char *buf, int size)
+{
+	return "dummy";
+}
+
+char *
+getwd(char *buf)
+{
+	return "dummy";
+}
+
+char *strtok_r(char *str, const char *delim, char **saveptr)
+{
+	return strtok(str, delim);
+}
+
+void
+perror(const char *x)
+{
+}
+
+void
+raise(void)
+{
+}
+
+void *
+popen(void)
+{
+	return 0;
+}
+
+void
+pclose(void)
+{
+}
+
+void
+rewind(void)
+{
+}
+
+int
+GetThreadLocale(void)
+{
+	return 0;
+}
+
+int
+signal(void)
+{
+	return 0;
+}
+
+void
+setlocale(void)
+{
+	return 0;
+}
+
+static struct lconv localedata={"."};
+
+struct lconv *
+localeconv(void)
+{
+	return &localedata;
+}
+
+unsigned int
+alarm(unsigned int seconds)
+{
+}